[PATCH V3 10/13] md: use time_is_before_eq_jiffies() instead of open coding it

Qing Wang
2022-02-15T01:59:06Z

drivers/md/dm-writecache.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 5630b47..125bb5d
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -16,6 +16,7 @@
#include <linux/pfn_t.h>
#include <linux/libnvdimm.h>
#include <linux/delay.h>
+#include <linux/jiffies.h>
#include "dm-io-tracker.h"

#define DM_MSG_PREFIX "writecache"
@@ -1971,8 +1972,8 @@ static void writecache_writeback(struct work_struct *work)
while (!list_empty(&wc->lru) &&
(wc->writeback_all ||
wc->freelist_size + wc->writeback_size <= wc->freelist_low_watermark ||
- (jiffies - container_of(wc->lru.prev, struct wc_entry, lru)->age >=
- wc->max_age - wc->max_age / MAX_AGE_DIV))) {
+ time_is_before_eq_jiffies(container_of(wc->lru.prev, struct wc_entry, lru)->age
+ + wc->max_age - wc->max_age / MAX_AGE_DIV)) {

n_walked++;
if (unlikely(n_walked > WRITEBACK_LATENCY) &&
--
2.7.4